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import sqlite3
import random
import os
from typing import Optional
DB_PATH = os.path.join(os.path.dirname(__file__), "bot.db")
SEEDS_DIR = os.path.join(os.path.dirname(__file__), "seeds")
def _get_conn() -> sqlite3.Connection:
conn = sqlite3.connect(DB_PATH)
conn.row_factory = sqlite3.Row
return conn
def init_db():
with _get_conn() as conn:
conn.execute("""
CREATE TABLE IF NOT EXISTS items (
id INTEGER PRIMARY KEY AUTOINCREMENT,
category TEXT NOT NULL COLLATE NOCASE,
name TEXT NOT NULL COLLATE NOCASE,
note TEXT NOT NULL DEFAULT '',
added_by TEXT NOT NULL DEFAULT 'unknown',
UNIQUE(category, name)
)
""")
conn.commit()
def load_seed_file(category: str) -> list[tuple[str, str, str]]:
path = os.path.join(SEEDS_DIR, f"{category}.txt")
if not os.path.exists(path):
return []
entries: list[tuple[str, str, str]] = []
with open(path, encoding="utf-8") as f:
lines = [line.rstrip("\n") for line in f.readlines()]
# Split on blank lines to get per-entry blocks
blocks: list[list[str]] = []
current: list[str] = []
for line in lines:
if line.strip() == "":
if current:
blocks.append(current)
current = []
else:
current.append(line)
if current:
blocks.append(current)
for block in blocks:
if len(block) < 2:
continue
name = block[0].strip()
if len(block) == 2:
note = ""
added_by = block[1].strip()
else:
note = block[1].strip()
added_by = block[2].strip()
if name:
entries.append((name, note, added_by))
return entries
def seed(category: str, entries: Optional[list[tuple[str, str, str]]] = None):
if entries is None:
entries = load_seed_file(category)
if not entries:
return
with _get_conn() as conn:
row = conn.execute(
"SELECT COUNT(*) AS cnt FROM items WHERE category = ?", (category,)
).fetchone()
if row["cnt"] == 0:
conn.executemany(
"INSERT OR IGNORE INTO items (category, name, note, added_by) VALUES (?, ?, ?, ?)",
[(category, name, note, added_by) for name, note, added_by in entries],
)
conn.commit()
def add_item(category: str, name: str, added_by: str, note: str = "") -> str | None:
name = name.strip()
note = note.strip()
category = category.strip()
if not name:
return "❌ Name cannot be empty."
with _get_conn() as conn:
existing = conn.execute(
"SELECT id FROM items WHERE category = ? AND name = ?", (category, name)
).fetchone()
if existing:
return f"❌ **{name}** is already in the list."
conn.execute(
"INSERT INTO items (category, name, note, added_by) VALUES (?, ?, ?, ?)",
(category, name, note, added_by),
)
conn.commit()
return None
def remove_item(category: str, name: str) -> str | None:
name = name.strip()
if not name:
return "❌ Please provide a name to remove."
with _get_conn() as conn:
existing = conn.execute(
"SELECT id, name FROM items WHERE category = ? AND name = ?", (category, name)
).fetchone()
if not existing:
return None
actual_name = existing["name"]
conn.execute("DELETE FROM items WHERE id = ?", (existing["id"],))
conn.commit()
return actual_name
def find_item(category: str, keyword: str = "") -> sqlite3.Row | None:
"""Return a random item from the category, optionally filtered by keyword in note."""
keyword = keyword.strip().lower()
with _get_conn() as conn:
if keyword:
rows = conn.execute(
"SELECT name, note, added_by FROM items WHERE category = ? AND LOWER(note) LIKE ?",
(category, f"%{keyword}%"),
).fetchall()
else:
rows = conn.execute(
"SELECT name, note, added_by FROM items WHERE category = ?", (category,)
).fetchall()
if not rows:
return None
return random.choice(rows)
def migrate_from(old_db_path: str, category: str):
if not os.path.exists(old_db_path):
return
old_conn = sqlite3.connect(old_db_path)
old_conn.row_factory = sqlite3.Row
try:
tables = old_conn.execute(
"SELECT name FROM sqlite_master WHERE type='table'"
).fetchall()
if not tables:
return
table_name = tables[0]["name"]
rows = old_conn.execute(
f"SELECT name, note, added_by FROM {table_name}" # noqa: S608
).fetchall()
finally:
old_conn.close()
if rows:
with _get_conn() as conn:
conn.executemany(
"INSERT OR IGNORE INTO items (category, name, note, added_by) VALUES (?, ?, ?, ?)",
[(category, r["name"], r["note"], r["added_by"]) for r in rows],
)
conn.commit()
os.remove(old_db_path)
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